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816038422655 = 5811201242521
BaseRepresentation
bin10111101111111111010…
…11100010100001111111
32220000100010021000202112
423313333223202201333
5101332221314011110
61422514411244235
7112646123100521
oct13677753424177
92800303230675
10816038422655
11295097463055
121121a174967b
135bc4b9964b1
142b6d4459a11
1516361377405
hexbdffae287f

816038422655 has 8 divisors (see below), whose sum is σ = 980453567184. Its totient is φ = 652025764800.

The previous prime is 816038422651. The next prime is 816038422687. The reversal of 816038422655 is 556224830618.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 816038422655 - 22 = 816038422651 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816038422651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100617206 + ... + 100625315.

It is an arithmetic number, because the mean of its divisors is an integer number (122556695898).

Almost surely, 2816038422655 is an apocalyptic number.

816038422655 is a deficient number, since it is larger than the sum of its proper divisors (164415144529).

816038422655 is a wasteful number, since it uses less digits than its factorization.

816038422655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201243337.

The product of its (nonzero) digits is 2764800, while the sum is 50.

The spelling of 816038422655 in words is "eight hundred sixteen billion, thirty-eight million, four hundred twenty-two thousand, six hundred fifty-five".

Divisors: 1 5 811 4055 201242521 1006212605 163207684531 816038422655